Understanding and Improving Evaporative Engine Cooling at High Load, High Speed by Engine Tests and 3D Calculations

971792

05/19/1997

Event
1995 Vehicle Thermal Management Systems Conference and Exhibition
Authors Abstract
Content
This paper deals with engine evaporative cooling on the VW TDI diesel engine at high heat rejection running points. Engine tests and thermohydraulic 3D computations inside the engine head are used. First, the basic engine is studied. Then, the flow rate corresponding to evaporation is determined. Around this flow rate, the influence of inlet coolant temperature and circuit pressure are studied. The engine tests and 3D calculations give hydraulic ways of improvements consisting in balancing the flows around the different cylinders. Geometrical modifications of the inside engine circuit (gasket....) are then tested to achieve these improvements.
Meta TagsDetails
DOI
https://doi.org/10.4271/971792
Pages
11
Citation
Porot, P., Ménégazzi, P., and Ap, N., "Understanding and Improving Evaporative Engine Cooling at High Load, High Speed by Engine Tests and 3D Calculations," SAE Technical Paper 971792, 1997, https://doi.org/10.4271/971792.
Additional Details
Publisher
Published
May 19, 1997
Product Code
971792
Content Type
Technical Paper
Language
English